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Original Articles

Species of Luticola D.G. Mann (Bacillariophyceae) in the Atlantic Forest rivers from southern Brazil

, ORCID Icon &
Pages 417-437 | Received 07 Nov 2016, Accepted 24 Jul 2017, Published online: 10 Nov 2017
 

Abstract

The genus Luticola is characterized mainly by valves with an internal longitudinal channel located at the valve face/mantle junction, rounded areolae and an isolated pore (stigma) near the central area. Studies on Luticola species that occur in Brazil are scarce. Therefore, this paper illustrates and describes the morphology of 18 species of Luticola under optical and scanning electron microscopy, from 15 rheophilic environments of an Atlantic Forest in southern Brazil. Two new species are proposed: Luticola moreirae Straube, Tremarin et T. Ludwig and Luticola papilioformis Straube, Tremarin et T. Ludwig, and are compared with morphologically similar species. Furthermore, the ultrastructure of Luticola camopiensis is revealed and described from SEM. Luticola beyensii, L. camopiensis and Luticola saprophila are recorded for the first time from Brazil.

Acknowledgements

We thank the Centro de Microscopia Eletrônica (CME) of Universidade Federal do Paraná for technical assistance. We thank the editor and reviewers for their careful reading of, and comments on, the paper.

Disclosure statement

No potential conflict of interest was reported by the authors.

ORCID

Priscila Izabel Tremarin http://orcid.org/0000-0002-0318-8331

Additional information

Funding

We would like to thank the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) for the postdoctoral scholarship grant to Dr P. Tremarin, the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) for the scientific productivity grant to Dr T. Ludwig (308332/2013-0) and for the master's scholarship grant to A. Straube.

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